LONG post, but need opinion:
Just changed oil in wives 2000 Ford Taurus 3.0 12 valve V6. Changed with Mobil 1 5W-30SS with WIX filter. It now has 52k miles. Been running AMSOIL or MObil 1 since 7k miles.
MAIN thing I was hoping for was MAYBE to cure a chronic valve chatter problem. Have tried TECHRON additive, 89 and 92 octane gas with no help. Run 87 octane Chevron most of the time. The car has been perfectly maintained since new, and didnt expect much residue.
The oil was black (naturally). It had 7400 miles on AMSOIL XL-7500 5W-30. 800 miles with AUTO-RX. First 6600 miles were with an AMSOIL SDF. Last 800 miles with AUTO-RX were with Carquest (WIX) filter.
Cut both filters open this evening and not really surprised to find that there was NO difference in the two filters. They BOTH looked pretty identical. BUT, this leads me to think that it did clean engine out since a filter with 800 miles looked as dirty as the 6600 mile filter. However, it is hard to tell since oil is brown/ black and flows though a light colored material that filters...anyway.
ONLY unexpected problem?? Last two fill-ups have been with the AUTO-RX in. I keep very accurate MPG records and fill-up each time with Chevron 95% of the time. I went from an average of 25.5 mpg the last 10 fill-ups to 23.10 and 22.62 mpg with the AUTO-RX. I dont know if this is normal, would like to know from some of you guys.
Havent driven it and probably wont for a few days, so wont find out if valves clatter is solved, gone, etc.
Again, sorry for the length and thanks for the help.
Just changed oil in wives 2000 Ford Taurus 3.0 12 valve V6. Changed with Mobil 1 5W-30SS with WIX filter. It now has 52k miles. Been running AMSOIL or MObil 1 since 7k miles.
MAIN thing I was hoping for was MAYBE to cure a chronic valve chatter problem. Have tried TECHRON additive, 89 and 92 octane gas with no help. Run 87 octane Chevron most of the time. The car has been perfectly maintained since new, and didnt expect much residue.
The oil was black (naturally). It had 7400 miles on AMSOIL XL-7500 5W-30. 800 miles with AUTO-RX. First 6600 miles were with an AMSOIL SDF. Last 800 miles with AUTO-RX were with Carquest (WIX) filter.
Cut both filters open this evening and not really surprised to find that there was NO difference in the two filters. They BOTH looked pretty identical. BUT, this leads me to think that it did clean engine out since a filter with 800 miles looked as dirty as the 6600 mile filter. However, it is hard to tell since oil is brown/ black and flows though a light colored material that filters...anyway.
ONLY unexpected problem?? Last two fill-ups have been with the AUTO-RX in. I keep very accurate MPG records and fill-up each time with Chevron 95% of the time. I went from an average of 25.5 mpg the last 10 fill-ups to 23.10 and 22.62 mpg with the AUTO-RX. I dont know if this is normal, would like to know from some of you guys.
Havent driven it and probably wont for a few days, so wont find out if valves clatter is solved, gone, etc.
Again, sorry for the length and thanks for the help.
